41905640 has 64 divisors (see below), whose sum is σ = 113443200. Its totient is φ = 13609728.

The previous prime is 41905639. The next prime is 41905679. The reversal of 41905640 is 4650914.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1382 + ... + 9258.

It is an arithmetic number, because the mean of its divisors is an integer number (1772550).

Almost surely, 2^41905640 is an apocalyptic number.

41905640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 41905640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56721600).

41905640 is an abundant number, since it is smaller than the sum of its proper divisors (71537560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

41905640 is a wasteful number, since it uses less digits than its factorization.

41905640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7914 (or 7910 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 41905640 is about 6473.4565728056. The cubic root of 41905640 is about 347.3421535242.

It can be divided in two parts, 4 and 1905640, that multiplied together give a triangular number (7622560 = T₃₉₀₄).

The spelling of 41905640 in words is "forty-one million, nine hundred five thousand, six hundred forty".